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clesyagpclesya
@clesyagpclesya
January 2021
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Bonjour pouvez vous m'aider a cette exercice SVP le plus vite possible c'est pour un DM c math
A: (6× + 2)(3× + 5)
B: (-5× + 3)(-2× + 4)
C: (5× + 4)(5× - 4)
C: (5× + 3)
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maudmarine
Verified answer
Bonjour,
A: (6× + 2)(3× + 5)
A = 18x² + 30x + 6x + 10
A = 18x² + 36x + 10
B: (-5× + 3)(-2× + 4)
B = 10x² - 20x - 6x + 12
B = 10x² - 26x + 12
C: (5× + 4)(5× - 4)
C = 25x² - 20x + 20x - 16
C = 25x² - 16
C: (5× + 3)²
C = 25x² + 30x + 9
2 votes
Thanks 1
clesyagpclesya
Merci pour ton aide
oussama16
Verified answer
Bonjour :
A=(6x+2)(3x+5)
A=18x²+30x+6x+10
A=18x²+36x+10
B=(-5x+3)(-2x+4)
B=10x²-20x-6x+12
B=10x²-26x+12
C=(5x+4)(5x-4) il prend la forme de (a+b)(a-b)=a²-b²
C=(5x)²-4²
C=25x²-16
D=(5x+3)² on a que (a+b)²=a²+2×a×b+b²
D=(5x)²+2×5x×3+3²
D=25x²+30x+9
Voilà , je te souhaite une bonne journée ^-^
2 votes
Thanks 0
clesyagpclesya
Merci pour ton aide
oussama16
De rien :)
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Verified answer
Bonjour,A: (6× + 2)(3× + 5)
A = 18x² + 30x + 6x + 10
A = 18x² + 36x + 10
B: (-5× + 3)(-2× + 4)
B = 10x² - 20x - 6x + 12
B = 10x² - 26x + 12
C: (5× + 4)(5× - 4)
C = 25x² - 20x + 20x - 16
C = 25x² - 16
C: (5× + 3)²
C = 25x² + 30x + 9
Verified answer
Bonjour :A=(6x+2)(3x+5)
A=18x²+30x+6x+10
A=18x²+36x+10
B=(-5x+3)(-2x+4)
B=10x²-20x-6x+12
B=10x²-26x+12
C=(5x+4)(5x-4) il prend la forme de (a+b)(a-b)=a²-b²
C=(5x)²-4²
C=25x²-16
D=(5x+3)² on a que (a+b)²=a²+2×a×b+b²
D=(5x)²+2×5x×3+3²
D=25x²+30x+9
Voilà , je te souhaite une bonne journée ^-^